[daip] FLATN in AIPS08

[Ruta Kale]

Hello,
I have installed aips08 in linux(CentOS).
i ran imagr and created an image with 59 facets.i am using FLATN to
put together these facets.FLATN is running extremely slowly(more than 5
times slower) compared to
what it used to in DEC05 version.i am copying the FLATN inputs :
AIPS 1: FLATN: Re-grid multiple fields and pointings to one image
AIPS 1: Adverbs     Values                 Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1:                                    Input images
AIPS 1: INNAME     '150RR70AS'                Image name (name)
AIPS 1: INCLASS    'RIM001'                   Image name (class)
AIPS 1: INSEQ         1                       Image name (seq. #)
AIPS 1: INDISK        3                       Image disk drive #
AIPS 1: NFIELD       59                    Max number of fields per
AIPS 1:                                       pointing
AIPS 1: NMAPS         1                    Number of pointings
AIPS 1:                                    Output image
AIPS 1: OUTNAME    ' '                        Image name (name)
AIPS 1: OUTCLASS   ' '                        Image name (class)
AIPS 1: OUTSEQ        0                       Image name (seq. #)
AIPS 1: OUTDISK       2                       Image disk drive #
AIPS 1: IMSIZE     8192        8192        Output image size in pixels
AIPS 1: COORDINA   *all 0                  Central pixel coordinate
AIPS 1:                                    all 0 => use observed
AIPS 1: COOTYPE    ' '                     Desired projection type
AIPS 1: COOINC        0           0        Desired coordinate increment
AIPS 1: COOREF        0           0        Desired reference pixel
AIPS 1: ROTATE        0                    Rotation to be used (deg)
AIPS 1: REWEIGHT      0           0        (1) Interpolation halfwidth
AIPS 1:                                    (2) Minimum fraction of good
AIPS 1:                                        pixels required (0->1/3)
AIPS 1: WEIGHTIT      0                    Weight image down by WEIGHTIT
AIPS 1:                                    times radius from center in "
AIPS 1: EDGSKP        0                    Skip pixels around the edges
AIPS 1: OPTYPE     ' '                     For mosaics only (NMAPS>1)
AIPS 1:                                    compute and output expected
AIPS 1:                                    noise ('NOIS') or weight
AIPS 1:                                    ('WEIG').
AIPS 1: APARM      *all 0                  (1) >0 => do 3-D corr.
AIPS 1:                                       ONLY for snapshots
AIPS 1:                                    (2) Parallactic angle (deg)
AIPS 1:                                    (3) Zenith angle (deg)
AIPS 1:                                    (4-8) radial scaling parms
AIPS 1:                                    (9) Linear scaling
AIPS 1: PBPARM     *all 0                  Beam parameters (NMAPS > 1)
AIPS 1:                                    (1) Cutoff; (2) Use (3)-(7)
AIPS 1:                                    (3)-(7) Beam shape
AIPS 1: NOISE      *all 0                  Relative uncertainties by
AIPS 1:                                    pointing: 0 -> image header
AIPS 1: BADDISK    *all 0                  Disks to avoid for scratch

What could be the reason?What can be done to fix this?

is there a way to install DEC07 version on my machine keeping the data areas
unaffected(to avoid loading all the data all over again in aips)?

thanking you in anticipation

Ruta
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